San Francisco Giants center fielder Angel Pagan re-injured his left hamstring during a rehab game Thursday night.
Pagan, rehabbing at Class A San Jose, was carted off the field after pulling up lame while running out a ground ball to second base in the ninth inning.
Pagan had arrived late to the game because of traffic problems and entered in the fourth inning. He appeared fine throughout the game, including running to the warning track to flag down a fly ball in the fourth. He also walked and ran out a grounder to first base with no issues.
After only making it about three-fourths of the way up the first-base line in the ninth on a grounder, he went down and had to be taken off the field.
CSN Bay Area reported that Pagan, 31, may require surgery on the hamstring. Pagan has not played a game for the Giants since May 25.
Pagan is batting .262 with a .314 OBP in 204 plate appearances this year.